Bin2I Function |  |
Convert a string containing a 16-bit signed integer to a short integer.
Namespace: XSharp.Core
Assembly: XSharp.Core (in XSharp.Core.dll) Version: 2.21
SyntaxRequest Example
View Source
Parameters
- cSignedInt
- Type: String
A 16-bit signed integer represented as a string — least significant byte first. Only the first 2 bytes are used by the function; all others are ignored.
Return Value
Type: ShortRemarks
Bin2I() is a conversion function that converts the first 2 bytes of a string to a short integer. Typical applications include reading foreign file types in their native format then saving, reading, decrypting, and transmitting long numeric data in their compressed binary form instead of in strings.
Positive numbers with 2 digits or less will not save disk space when converted.
For numbers that fall between 0 and 255, you can use Chr() or _Chr(). The inverse of Bin2I() is I2Bin().
For numbers that fall between 0 and 255, you can use Chr() or _Chr(). The inverse of Bin2I() is I2Bin().
Examples
This example opens a database file using file functions and reads the date of last update (bytes 1-3).
The result is the same as LUpdate():
The result is the same as LUpdate():
X#
1ptrHandle := FOpen2("sales.dbf", FO_READ) // Point to byte 1 in the file 2FSeek(ptrHandle, 1, FS_SET) // Read date of last update 3siYear := Bin2I(FReadStr(ptrHandle, 1) + _Chr(0)) 4siMonth := Bin2I(FReadStr(ptrHandle, 1) + _Chr(0)) 5siDay := Bin2I(FReadStr(ptrHandle, 1) + _Chr(0)) 6? NTrim(siMonth), NTrim(siDay), NTrim(siYear) 7FClose(ptrHandle)
See Also